Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a bottom, front perspective view thereof; and,

FIG. 9 is a top, rear perspective view thereof.

The details shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 